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Buying Diamonds

Diamonds...
Not only nature's strongest substance but also the most beautiful.  Read on for everything you need to know to find the perfect one for you.

The 4 Cs are the secret to understanding a diamond's quality and characteristics.  When choosing you should consider its cut, colour, clarity and carat and we'll look at the significance of each of these areas in turn.

3 Engagements

Cut
The shape you may choose is entirely personal; choices include Round, Princess, Pear, Emerald, Marquise and Royal Asscher to name but a few.  Brilliant cut diamonds are the perennial engagement ring classic.  Pear-shaped stones have an elegant outline and tend to look a little larger or, if your preference is for a contemporary style, Royal Asscher cut or Princess cut stones may be for you.  The choice is yours.

The most important aspect of a diamond's beauty is revealed in the perfection of its cut or what in the trade is referred to as 'make'.  The perfection of the polish, proportions and symmetry (e.g. alignment of the facets) maximises the  performance of light entering the stone from the top.  This light is then bounced from facet to facet and is reflected back through the top of the stone in a rainbow blaze.  If a diamond is cut to the wrong proportions, e.g. too deep or too shallow, light is reflected at the wrong angle, allowing it to 'leak', diminishing brilliance and fire.  Well cut diamonds look significantly larger than poorly cut stones of the same size because more light is reflected back to the eye.  This can increase the value by up to fifty per cent.  Our diamond experts carefully examine all diamonds, selecting only those which offer the best combinations of beauty and value.

Colour
Colour is generally considered to be the second most important characteristic which determines a diamond's value.  With white diamonds, what is referred to as colour is actually the lack of colour and is measured on a scale starting with D (colourless and the most expensive), through to Z (having a very noticeable yellow hue).  Diamonds are graded by inspection in controlled lighting conditions (e.g. natural daylight or lamps that replicate its wavelength) and with comparison to pre-graded master stones. 

Hettich can offer a selection covering most colour ranges from D to K for the purest grades.  D, E and F offer no noticeable colour.  However, grades G, H and I offer stones that look white to the eye, but with inspection reveal little or no noticeable colour.  These grades are often the most purchased as they offer an excellent balance between beauty and value.

Natural fancy colour diamonds have recently become very popular and are available in every shade in nature.  We are pleased to have some exquisite examples in our collection, particularly fancy yellow diamonds which look stunning.

HDK 29


Clarity
A diamond's clarity refers to its optical purity.  Put simply, it is a measure of the number and size of the tiny inclusions or surface marks that occur in almost all diamonds that can be seen under 10x magnification.  According to many experts, clarity has the least impact on a diamond's appearance.  We offer diamonds generally in the range of Flawless (no inclusions) to SI (small inclusions).  Stones in the range of FL/IF (Flawless/Internally Flawless) command the highest prices. VVS1 - VVS2 (very very small inclusions) are at the next price level and offer exceptional quality at a slightly lower price.  Stones in the range of VS1-SI2 (very small - small inclusions) can offer great value as generally the inclusions do not impact upon the stone's beauty.

3 Eternities Carat
This is the term that people are probably most familiar with and is a measure of weight not size: one carat is equivalent to a fifth of a gram.  The term carat is believed to come from the ancient way of trading diamonds, when traders' scales were balanced by carob seeds which were amazingly consistent in weight.  Choosing the weight is again a personal consideration depending upon budget available, and should be considered in relation to the cut grade as poorly cut stones may often have a diameter larger or smaller than well cut stones.

The Fifth C
We would like to add a fifth 'C': confidence.  It's easy to regard diamonds as a commodity but, as we have discussed, their great worth comes from beauty.  We cannot stress enough that whilst all of the above factors can be measured and are important, it takes years of training and experience to understand diamonds.  We are qualified diamond graders and our experience ensures that we only hold carefully chosen stones.  The best way to select your perfect diamond can only come from viewing it personally.  We strongly advise avoiding purchasing diamonds online as many of the stones offered have characteristics that appear to be graded well but which would not pass the Hettich quality threshold.  Finding your perfect diamond is very important, as is finding the right jeweller to purchase from.  You can rely on us to only supply you with an outstanding stone.

Ethical Sourcing
All diamonds sourced by Hettich are conflict free.  Only buying our diamonds from suppliers who fully subscribe to the Kimberley process ensures every diamond can be traced back to a source that is confirmed as not being involved in funding conflict.  Furthermore, we also have a partnership with the Royal Asscher Stars of Africa project, the proceeds of which go to improving infrastructure and creating funding for healthcare, education and self-sufficiency programmes in Africa.

2 Pairs of Earrings

Bespoke Design
We can help you to find your perfect stone, and we can then offer you a completely bespoke service, allowing us to create the jewellery of your dreams.

Service
Your diamond should be looked after and kept clean to allow it to sparkle at its brilliant best and ensure the stone is secure.  We encourage our customers who have purchased their diamond from us to take advantage of a free clean and regular inspection of the setting.  (Polishing, if required, will be chargeable)

Please call us to discuss any of your diamond requirements.  We love these wonderful gems and are here to help.

For further in-depth technical information please refer to the website of the Gemological Institute of America at www.gia.edu